Foldable easel



FIG. 1 is a perspective view of a foldable easel showing my new deisgn;

FIG. 2 is a side view of the easel of FIG. 1;

FIG. 3 is a side view thereof, the easel shown in a partially folded position;

FIG. 4 is a top view of the easel of FIG. 1; and,

FIG. 5 is a bottom view of the easel of FIG. 1. 

The ornamental design for a foldable easel, as shown and described. 